The 38mm sport loop is 8.5" long when laid out flat, not including the findings at either end. There are 4 hook sections at one end. In order for the foldover to work, at least one hook section must be able to connect to the loop surface to fasten. That decreases the length by at least 1.25". There are 4 hook sections, and I wouldn't want to use less than 2 hook sections to get a secure closure. I wear a 7.5-8" jewelry bracelet, and I can get a comfortable 4-hook section closure with some length to spare. The 42mm band is longer, but I don't have access to it.